HEAVY DUTY PNEUMATIC TIRE

A heavy duty pneumatic tire has provided in a buttress region thereof a protrusion extending in the tire circumferential direction. In a tire meridian cross-section, the maximum protrusion height hof the protrusion from an imaginary buttress surface J is 3.0 mm or greater and is in the range of 0.025-0.050 times a half tread width Wt. The cross-sectional area Sa of the protrusion protruding from the imaginary buttress surface J is 20 mmor greater.